Add --with-system-zlib in gas

This patch adds --with-system-zlib and remove --with-zlib in gas.

gas/

	* Makefile.am (ZLIBINC): New.
	(AM_CFLAGS): Add $(ZLIBINC).
	* as.c: (show_usage): Don't check HAVE_ZLIB_H.
	(parse_args): Likewise.
	* compress-debug.c: Don't check HAVE_ZLIB_H to include <zlib.h>.
	(compress_init): Don't check HAVE_ZLIB_H.
	(compress_data): Likewise.
	(compress_finish): Likewise.
	* configure.ac (AM_ZLIB): Removed.
	(zlibinc): New.  AC_SUBST.
	Add --with-system-zlib.
	* Makefile.in: Regenerated.
	* config.in: Likewise.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

gas/testsuite/

	* gas/i386/dw2-compress-1.d: Expect .zdebug_info.

1 files changed, 5 insertions, 25 deletions

diff --git a/gas/compress-debug.c b/gas/compress-debug.c
index b036610d381..87493998651 100644
--- a/gas/compress-debug.c
+++ b/gas/compress-debug.c
@@ -20,21 +20,15 @@
 
 #include "config.h"
 #include <stdio.h>
+#include <zlib.h>
 #include "ansidecl.h"
 #include "compress-debug.h"
 
-#ifdef HAVE_ZLIB_H
-#include <zlib.h>
-#endif
-
 /* Initialize the compression engine.  */
 
 struct z_stream_s *
 compress_init (void)
 {
-#ifndef HAVE_ZLIB_H
-  return NULL;
-#else
   static struct z_stream_s strm;
 
   strm.zalloc = NULL;
@@ -42,22 +36,15 @@ compress_init (void)
   strm.opaque = NULL;
   deflateInit (&strm, Z_DEFAULT_COMPRESSION);
   return &strm;
-#endif /* HAVE_ZLIB_H */
 }
 
 /* Stream the contents of a frag to the compression engine.  Output
    from the engine goes into the current frag on the obstack.  */
 
 int
-compress_data (struct z_stream_s *strm ATTRIBUTE_UNUSED,
-	       const char **next_in ATTRIBUTE_UNUSED,
-	       int *avail_in ATTRIBUTE_UNUSED,
-	       char **next_out ATTRIBUTE_UNUSED,
-	       int *avail_out ATTRIBUTE_UNUSED)
+compress_data (struct z_stream_s *strm, const char **next_in,
+	       int *avail_in, char **next_out, int *avail_out)
 {
-#ifndef HAVE_ZLIB_H
-  return -1;
-#else
   int out_size = 0;
   int x;
 
@@ -77,7 +64,6 @@ compress_data (struct z_stream_s *strm ATTRIBUTE_UNUSED,
   *avail_out = strm->avail_out;
 
   return out_size;
-#endif /* HAVE_ZLIB_H */
 }
 
 /* Finish the compression and consume the remaining compressed output.
@@ -85,14 +71,9 @@ compress_data (struct z_stream_s *strm ATTRIBUTE_UNUSED,
    needed.  */
 
 int
-compress_finish (struct z_stream_s *strm ATTRIBUTE_UNUSED,
-		 char **next_out ATTRIBUTE_UNUSED,
-		 int *avail_out ATTRIBUTE_UNUSED,
-		 int *out_size ATTRIBUTE_UNUSED)
+compress_finish (struct z_stream_s *strm, char **next_out,
+		 int *avail_out, int *out_size)
 {
-#ifndef HAVE_ZLIB_H
-  return -1;
-#else
   int x;
 
   strm->avail_in = 0;
@@ -113,5 +94,4 @@ compress_finish (struct z_stream_s *strm ATTRIBUTE_UNUSED,
   if (strm->avail_out != 0)
     return -1;
   return 1;
-#endif /* HAVE_ZLIB_H */
 }